Why do his college grades matter to you? Do you think that they will show he is actually not smart? Do you think they will show that he benefited from affirmative action?

It's not the grades that will matter so much but by 'unsealing his school records' it will reveal what he claimed his citizenship to be when he did all that traveling abroad from a child through college and even more importantly who financed his schooling the whole time. Which IMO it was Frank Marshall Davis(his real daddy) who was married to a very wealthy woman in Chicago up until he went to grad school. Affirmative action no doubt.